Question 444435: 20. Solve the following inequality.
x2 - 5x ≥ -6
A. [2, 3]
B. (-∞, 2] or [3, ∞)
C. [3, ∞)
D. (-∞, 2]
21. Solve the following inequality.
(a + 7)(a - 5)(a - 6) > 0
A. (-7, 5) or (6, ∞)
B. (-∞, -7) or (5, 6)
C. (-∞, 5)
D. (6, ∞)
22. Solve the following inequality.
x2 + 8x + 15 > 0
A. (-∞, -5) or (-3, ∞)
B. (-3, ∞)
C. (-∞, -5)
D. (-5, -3)
23. Solve the following inequality.
x3 + 4x2 - 45x > 0
A. (-5, 0) or (9, ∞)
B. (-9, 0) or (5, ∞)
C. (-9, ∞)
D. (-∞,-9) or (0, 5)
Answer by solver91311(24713)   (Show Source):
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John
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